From Event: SPIE Optical Engineering + Applications, 2016
JWST will be the biggest space telescope ever built and it will lead to astounding scientific breakthroughs. The mission will be launched in October 2018 from Kourou, French Guyana by an ESA provided Ariane 5 rocket. NIRSpec, one of the four instruments on board of the mission, recently underwent a major upgrade. New infrared detectors were installed and the Micro Shutter Assembly (MSA) was replaced as well. The rework was necessary because both systems were found to be degrading beyond a level that could be accepted. The installation and “in situ” alignment of these new systems required special techniques and alignment jigs that will be described in this paper. Some first results will be presented as well.
Maurice te Plate, Peter Rumler, Peter Jensen, Robert Eder, Ralf Ehrenwinkler, Frank Merkle, Andreas Roedel, Max Speckmaier, Thomas E. Johnson, Brent Mott, Stephen Snodgrass, Chris Gunn, and Justin Ward, "How to align a new detector and micro shutter inside JWST’s Near Infrared Spectrograph (NIRSpec)," Proc. SPIE 9951, Optical System Alignment, Tolerancing, and Verification X, 99510F (Presented at SPIE Optical Engineering + Applications: August 28, 2016; Published: 27 September 2016); https://doi.org/10.1117/12.2238386.
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